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Beneficial Effects of Water Extracts of Scutellariae Radix on Immune Function in Mice Fed Alcohol

알코올 섭취한 생쥐에서 황금(黃芩) 열수추출물이 생쥐의 면역기능에 미치는 영향

  • Lee, In-Seok (Dept. of Medical Nutrition, Graduate School of Ease-West, Medical Science, Kyung Hee University) ;
  • Kang, Kyoung-Lan (Research Institute of Clinical Nutrition, Kyung Hee University) ;
  • Choue, Ryo-Won (Dept. of Medical Nutrition, Graduate School of Ease-West, Medical Science, Kyung Hee University)
  • 이인석 (경희대학교 동서의학대학원 의학영양학과) ;
  • 강경란 (경희대학교 임상영양연구소) ;
  • 조여원 (경희대학교 동서의학대학원 의학영양학과)
  • Published : 2006.06.01

Abstract

High fat diet and chronic alcohol consumption cause hyperlipidemia, steatohepatitis and in some cases, cirrhosis. But the detailed mechanisms are not known. Scutellariae Radix (SR) has been known to have hepatoprotective effects. The aim of this study was, therefore, to determine whether SR water extract (100 mg/kg) could affect immune function in mice abused by long-term alcohol consumption (feed 25% ethanol in water for 1 month, ad libitum) with high fat diet (40% fat of total calorie). Mice received either a regular diet (RD, AIN 93) or a high fat diet (HD); high fat diet group were divided into ethanol group (HED) or ethanol with SR water extract group (HEDS). Food consumption was measured daily and body weights recorded weekly throughout the experiment. Immunological parameters (Ig A, Ig E, TNF-$\alpha$, IFN-$\gamma$, IL-$1{\beta}$) were measured from the serum and the supernatant of spleen lymphocytes from the all groups. The concentration of serum Ig A, Ig E and cytokines were significantly higher in the alcohol consumed groups. Also the concentration of supernatant of spleen lymphocytes, Ig A, Ig E, cytokines were significantly higher in the ethanol consumption groups. Otherwise, HEDS group were significantly lower than HED group. These results suggest that SR water extract may improve the haptic immune function in mice fed high fat diet with alcohol.

본 연구에서는 생쥐(ICR)에서 고지방식이 및 만성알코올 섭취 시 황금 열수추출물이 면역지표에 미치는 영향을 관찰한 결과를 요약하면 다음과 같다. 실험동물의 체중은 사육기간이 지남에 따라 증가하였으며 각 군 간의 유의적인 차이는 없었다. 섭취한 총칼로리와 식이효율은 고지방식이와 알코올 섭취군에서 유의적으로 높았다. 혈청 Ig A 농도는 고지방식이와 알코올 섭취군에서 가장 높았으며 황금 열수추출물에 의한 효과는 볼 수 없었다. 혈청 Ig E 농도는 고지방식이와 알코올 섭취군에서 유의적으로 높았으며 황금 열수추출물이 알코올의 영향을 경감시켰다. 그러나 식이에 따른 차이는 보이지 않았다. 혈청 TNF-$\alpha$, IFN-$\gamma$, IL-$1{\beta}$는 군 간에 유의적인 차이는 관찰되지 않았다. 비장 임파구 배양 상층 중 Ig A는 고지방식이+알코올+황금 열수추출물 섭취군과 고지방식이+알코올 섭취군에서 유의적으로 높았다. 비장 임파구 배양 상층액 Ig E 농도는 일반식이군과 고지방식이+알코올+황금 열수추출물 섭취군에서 유의적으로 높았다. 비장 임파구 배양 상층의 TNF-$\alpha$, IFN-$\gamma$는 고지방식이+알코올 섭취군에서 유의적으로 높았다. IL-$1{\beta}$는 고지방식이+알코올 섭취군과 고지방식이+알코올+황금 열수추출물 섭취군에서 유의적으로 낮았다. 혈청 cytokine과 달리 Con A로 자극한 비장 임파구 배양 상층액에서 cytokine의 분비 변화는 알코올과 고지방식이 섭취가 잠재적인 영향을 주는 것으로 사료된다. 이상의 결과를 종합하면 생쥐에서 알코올 및 고지방 섭취가 immunoglobulin(Ig A, Ig E)과 proimflammatory cytokine(TNF-$\alpha$, IFN-$\gamma$)을 증가시키는 부정적인 역할 하는 것을 확인할 수 있었으며 황금 열수추출물이 이를 개선하는 효과를 보였다.

Keywords

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